Box2D different angle slopes

[Cyraxx]

Hi,
  I have created a Box2D based map for my platformer using ChainShape wich has different angle slopes (no more than 45°).
My problem is the slope collision with my player. The player' body has 2 fixtures, a rectangle and a circle bellow it. Whenever I move the player (the method doesn't matter the results are the same) and I stop on the middle of a slope I slowly glide down. I managed to temporarly fix that but the main reason for this post is the fact that whenever I leave a slope l I shoot out because I still have some impulse left from the previous movement. Same thing happens when I enter a downwards slope, or when I stop on a slope and I start moving again.

Entering / leaving the slope:
(The red lines are the desired movement, the black is the movement I have right now)


Start moving on a slope:
(The red lines are the desired movement, the black is the movement I have right now)


Could you please help me out with this problem? I don't mind if your answer is detailed either
Thanks in advance!

[Hapax]

It looks like you need to increase gravity or increase the mass of the object.

[Cyraxx]

I've tried both already but it doesn't seem to work.

[eXpl0it3r]

If you're lucky someone here knows Box2D well, otherwise this is essentially nothing to do with SFML and as such, you might be better helped on the official Box2D forum or maybe even on StackOverflow.

And some more info on your Box2D setup etc. might be useful as well.

[select_this]

I don't know much about Box2d's implementation of gravity, but it looks like the gravitational acceleration is gradual (hence why you're seeing it react late and spending more time in the air than you should).

One simple solution would be to have two states for your player object; a 'ground' state where gravitational acceleration is instant whilst the base of the player object is touching solid ground, and an 'air' state where a more traditional representation of gravity, with its gradual acceleration, comes into effect when the player object jumps or begins falling. If I recall correctly, the early Sonic the Hedgehog games implemented something to this effect.

EDIT: Reformatted for easier reading.